Question to the Ministry of Defence:

To ask the Secretary of State for Defence, with reference to page 24 of the Defence Industrial Strategy: Making Defence an Engine for Growth, published on 8 September 2025, what steps he has taken to ensure that cryptography capability is UK-based.

The Ministry of Defence (MOD) recognises that Crypt-Key is fundamental to the defence and security of the UK. The ability to develop Crypt-Key technologies and capabilities is a strategic imperative for the United Kingdom’s (UK) national security.

The National Crypt-Key Strategy and the Crypt-Key Industrial Strategy were approved by the National Security Council (NSC) in May 2022. The MOD has implemented the core strategy outcomes such as the Cabinet Office Spent Control measures for Crypt-Key and continues to support their full implementation.

The Defence Industrial Strategy (2025) continues to recognise Crypt-Key as a critical sub-sector where strategic imperative requires full, or majority, industrial capability to be UK-based.

The MOD has taken the appropriate steps to ensure alignment to the Crypt-Key strategies.